/Engine/Source/Runtime/TypedElementRuntime/Public/Elements/Framework/TypedElementInterfaceCustomization.h
If bAllowFallback is true, then this will return the default interface customization if no override is present, otherwise it will return null.
CustomizationBaseType * GetInterfaceCustomizationByTypeName ( const [FName](API\Runtime\Core\UObject\FName) InElementTypeName, const bool bAllowFallback ) const